Home / 397,701.12-596,465.28-131,398.56

Finding the Fourth Proportional to 397,701.12, 596,465.28 and 131,398.56

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Solution

The fourth proportional to 397,701.12, 596,465.28 and 131,398.56 is: 197,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,701.12 : 596,465.28 = 131,398.56 : x
  2. Step 2: Convert to fraction form
    397,701.12/596,465.28 = 131,398.56/x
  3. Step 3: Cross multiply
    397,701.12x = 596,465.28 × 131,398.56
  4. Step 4: Simplify right side
    397,701.12x = 78,374,678,882.00
  5. Step 5: Solve for x
    x = 78,374,678,882.00/397,701.12
  6. Step 6: Final answer
    x = 197,069.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.